the 16B K2 attachment has a bent tab on both sides with two holes each for mounting
This 6301 ball bearing is a high-precision premium quality deep groove 12x37x12 ball bearing made to ABEC 3 precision standards from AXIS
Part #: 12B SK2
the 6301 bearing features raceways that are precision honed to a superb finish
UCFX11-36 bearing is a 2-1/4" bore four-bolt medium-duty flange bearing that utilizes set screws to secure to a 2-1/4" shaft
2BK47H Pulley double-groove 4.45" OD Bearings the 16B K2 attachment hasThis two groove 2BK47H Pulley uses an H Series Bushing, is directly interchangeable with other manufacturers, is 4. 45" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. With AK series pulleys you can use A, 4L, B, 5L, AX, BX, AA, BB, and banded belts. What separates this 2BK47H pulley from the others is that it is made using a high grade 35 cast iron, is phosphate coated, painted, and balanced at the factory.